Background: Guidelines for the successful implementation of two-way dual language bilingual education (DLBE) programs foreground the role of program leadership, hiring and preparing culturally and linguistically competent teachers, family involvement, and the alignment between curriculum, assessments, and instruction in both languages. Absent in…

A Mandarin/English two-way immersion elementary program is described from its inception and implementation through the fifth grade, the culminating year of the program. All students in all grades were assessed on their oral/listening, reading, and writing performance in Mandarin using program-created assessment measures. Fifth-grade students also…